Humans identify emotions in the voices of all air-breathing vertebrates

(Ruhr-University Bochum) Amphibians, reptiles, mammals -- all of them communicate via acoustic signals. And humans are able to assess the emotional value of these signals. This has been shown in a new study reported in 'Proceedings of the Royal Society B'. The authors interpreted their findings as evidence that there might be a universal code for the vocal expression and perception of emotions in the animal kingdom.